shrimp-fish vs teleostan

shrimp-fish and teleostan both are nouns.

Word	Noun	Adjective	Verb	Adverb
shrimp-fish	Yes	No	No	No
teleostan	Yes	No	No	No

As nouns, teleostan is a hypernym of shrimp-fish; that is, teleostan is a word with a broader meaning than shrimp-fish:

shrimp-fish: slender tropical shallow-water East Indian fish covered with transparent plates
teleostan: a bony fish of the subclass Teleostei

Other hypernyms of shrimp-fish include teleost, teleost fish.

shrimp-fish (noun)	teleostan (noun)
slender tropical shallow-water East Indian fish covered with transparent plates	a bony fish of the subclass Teleostei